Toothbrush assembly



FIG. 1 is a perspective view of the toothbrush assembly according to the invention;

FIG. 2 is a top view of the toothbrush assembly as shown in FIG. 1;

FIG. 3 is a side view of the toothbrush assembly as shown in FIG. 1; and,

FIG. 4 is a bottom view of the toothbrush assembly as shown in FIG. 1. 

The ornamental design for a toothbrush assembly, as shown and described. 